A pad that can enhance playability on some 3DS titles

Certainly, right out, we realize that the circular pad pro is intended primarily for household use.
All 3DS-pad is large and will fit less easily into a bag for game sessions "outside."

With this accessory, it now has as many buttons as on home controllers.
For in addition to the second analog stick, there are also two new sears (Zl and Zr).
In total, it has 4 slice buttons: L, R, Zl and Zr, which is unusual for a handheld console.

As long as developers are interested in something, hopefully enjoy games boasting gameplay comfort close enough to their salon counterparts.

On Resident Evil: Revelations, the experience was very convincing and I really enjoyed the gain in terms of maneuverability.
As you can see on the attached video [1], this accessory allows you to manually control the camera with the right stick and move while firing.
This is extremely valuable when one has tasted the flexibility of Dead Space for example).

However, the number of compatible titles is extremely low: Resident Evil Revelations, Metal Gear Solid: Snake Eater 3D, Kid Icarus: Uprising [2], Kingdom Hearts and Monster Hunter 3G (in Japan for now)

The console is well maintained in the circular pad, thanks to a strap that comes with.
The battery power system (1 x LR03) is somewhat anachronistic, but it's a fairly logical choice given the autonomy announced (480 hours for an alkaline battery).
The battery cover is locked with a screw, and it is hoped that this will be more reliable than the fragile battery cover of the GameBoy (and GameBoy Advance).
Plastic is good. [3]

The only complaint I have to make is the lack of a place to store the stylus of the 3DS.
Indeed, one of the console is hidden when the console is inserted into the pad and it would have been wise to add one on the pad ...

In the end, even if we can pester the fact that this accessory is designed especially to overcome missing functions based on 3DS
we must recognize that all working well and provides additional comfort for compatible games.

I recommend it to all who wish to play "Resident Evil Revelations".
Otherwise you can always wait until the release of a game that suits your needs most.
Anyway, the circular pad pro is useful with compatible games - and it is of no use for other games.

NB: Remember that the pad is not compatible with the DS 'tank', the DS Lite, DSi, DSi XL and 3DS XL.
It is an accessory reserved for the 3DS.
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[1] Video made by myself with the demo available on the eShop.
[2] For Kid Icarus, the circular pad pro simply adds the ability to play the right stick to the left.
[3] Indeed, it is the same plastic for the Classic Controller Pro. Wii Black, but without the glossy coating of the upper face ..